Final answer:
Output methods such as speakers, headphones, and interactive whiteboards are used as computer hardware to convert digital signals into human-readable forms.
Step-by-step explanation:
The subject of this question falls under Computers and Technology. The question discusses different output methods such as speakers, headphones, and interactive whiteboards.
Output methods are a part of computer hardware that allows users to perceive information from a computer system. They convert digital signals into human-readable forms.